[FLINK-39394][web] Fix job overview metrics broken when a vertex is finished

[Izeren]

Backport of #27888 to release-2.1.

[flinkbot]

CI report:

• 432eee7 Azure: FAILURE

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[RocMarshal]

Hi, @Izeren Thanks a lot for the PR.
BTW, I've looked at the commit history for the BP (Backport Pull Requests) on this ticket, and it seems there hasn't been a PR targeting the 1.20 branch. Since Flink 1.20.x is a long-term support (LTS) version decided by the community, I have to ask: is there a specific reason or consideration for this?

[Izeren]

Hi, @Izeren Thanks a lot for the PR. BTW, I've looked at the commit history for the BP (Backport Pull Requests) on this ticket, and it seems there hasn't been a PR targeting the 1.20 branch. Since Flink 1.20.x is a long-term support (LTS) version decided by the community, I have to ask: is there a specific reason or consideration for this?

Good point @RocMarshal, I can create backport for 1.20 as well

p.s. #27939

[RocMarshal]

@Izeren
Good work!
IIUC, The 2.0.x need it, too. Because the version was mentioned by [1].
[1] https://lists.apache.org/thread/khk4z1kx75opqwzcgjfh74doytgsp5d5